Improving Query Optimization for Disjunctive Datalog.
Chiara CumboWolfgang FaberGianluigi GrecoPublished in: APPIA-GULP-PRODE (2003)
Keyphrases
- query optimization
- database systems
- cost model
- multidatabase systems
- query processing
- expressive power
- query execution
- disjunctive datalog
- cardinality estimation
- xml data
- continuous queries
- cost estimation
- query execution plans
- selectivity estimation
- query scheduling
- database
- query optimizers
- databases
- query optimizer
- artificial intelligence
- np hard
- special case